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The quality of through-wall-radar building layout image is affected seriously by the grating lobes when the element spacing of array is bigger than half a wavelength. Moreover, the image defocusing caused by the unknown wall penetration makes the problem worse. Based on the opposite characteristics of the low-frequency phase change of wall image area and the high-frequency phase change of grating...
This letter considers the problem of building layout determination using through-wall-radar imaging technology, which employs multiple transmit–receive channels to implement multiview synthetic aperture imaging. In each view, the phase errors of multichannel data introduced by the unknown walls deteriorate significantly the performance of the coherently data-combined algorithm by Le <etal/>...
This paper mainly deals with target detection under heavy clutters in through-the-wall-radar imaging, and based on random sparse array, proposes an approach of multi-channel target cooperative detection with modified N-K detector applied to multiple single-channel images.
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